From hand warmers to heated socks, there are devices for every extremity. But experts flag some safety concerns
Dave Southgate is toasty in his chilly Canberra home – and he pays no power bills.
A USB-rechargeable heated vest, worn underneath a jumper, and a heated scarf wrapped around his neck offer all the warmth he needs. His heat-loving wife prefers an electrically-warmed seat. They keep electric throw rugs on the couch.